Test Description
WARNING: This page is about a different car, the 2002 GMC Yukon XL, 2002 GMC Sierra, 2002 Chevrolet Suburban, and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The numbers listed below refer to step numbers in the diagnostic procedure:
- 3
This step verifies a problem in the TFT sensor circuit inside the transmission. - 5
This step tests for higher than normal circuit voltage which may also damage the TFT sensor.